Characterization of the natural products in cocoyam (<i>Colocasia esculenta</i>) using GC–MS

Eleazu, Chinedum

doi:10.1080/13880209.2016.1190383

Cited by 41 publications

(26 citation statements)

References 28 publications

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“…Over 8,000 identified polyphenols are present in foods and they have been found to play important roles in the maintenance of human health and wellness (Tsao, 2010; Eleazu et al, 2013b; Eleazu, 2016). …”

Section: Methodsmentioning

confidence: 99%

Management of Benign Prostatic Hyperplasia: Could Dietary Polyphenols Be an Alternative to Existing Therapies?

Eleazu¹,

Eleazu

Kalu

2017

Front. Pharmacol.

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The incidence of benign prostatic hyperplasia (BPH) is gradually on the increase. While conventional drugs such as the α1-adrenergic receptor antagonists and 5α-reductase inhibitors have been found to be useful in the treatment of BPH, the adverse side effects associated with their usage, have led to increased search for alternative means of managing this disease. Furthermore, although surgery has also been suggested to be a sure method, the cost and risks associated with it excludes it as a routine treatment. Dietary polyphenols have gained public interest in recent times due to their roles in the prevention of various diseases that implicate free radicals/reactive oxygen species. However, their roles in the management of BPH have not been explored. Hence, this review on their prospects in the management of BPH and their mechanisms of action. Literature search was carried out in several electronic data bases such as PubMed, Google Scholar, Medline, Agora, and Hinari from1970 to 2017 to identify the current status of knowledge on this concept. The findings from these data bases suggest that while dietary polyphenols may not replace the need for the existing therapies in the management of BPH, they hold promise in BPH management which could be explored by researchers working in this field.

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Section: Methodsmentioning

confidence: 99%

Management of Benign Prostatic Hyperplasia: Could Dietary Polyphenols Be an Alternative to Existing Therapies?

Eleazu¹,

Eleazu

Kalu

2017

Front. Pharmacol.

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“…Flavonoids and phenolic acids are known to possess antioxidant activities due to the presence of hydroxyl groups in their structures and their redox properties (Eleazu, ; Ukwe & Ubaka, ). In addition, flavonoids as the largest group of phenolics found in fruits, vegetables, and other plant parts have been linked to reducing the risk of major degenerative diseases (Eleazu, Eleazu, et al., ).…”

Section: Discussionmentioning

confidence: 99%

“…These polyphenols (tannins, flavonoids, and phenols) have also been associated with hypoglycemic activity due to their ability to inhibit brush border enzymes (α‐amylase, α‐glucosidase, and others) (Eleazu, ; Eleazu, Eleazu, et al., ; Ogundajo, Kazeem, Owoyele, Ogunmoye, & Ogunwande, ; Ukwe & Ubaka, ). Therefore, high amounts of these polyphenols in the raw vegetable could have contributed to the hypoglycemic, α‐amylase, and α‐glucosidase inhibitory properties of this vegetable as previously reported (Ogundajo et al., ; Ukwe & Ubaka, ).…”

Section: Discussionmentioning

confidence: 99%

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Effect of processing on the biochemical contents of Acanthus montanus (Nees) T. Anderson (Acanthaceae) leaves

Igwe

Eleazu

2017

Food Science & Nutrition

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The effect of processing on the biochemical contents of Acanthus montanus leaves was investigated. The moisture, crude protein, lipid, fiber, ash, and total carbohydrate contents of the raw vegetable were 59.15, 1.85, 2.32, 3.76, 2.04, and 34.65 g/100 g, respectively. The saponin, alkaloid, tannin, flavonoid, phenol, and anthocyanin contents of the raw vegetable were 5.35, 4.04, 1.10, 3.53, 2.87, and 1.27 g/100 g, respectively, while it contained 2.65 mg/100 g calcium, 1.14 mg/100 g magnesium, 7.66 mg/100 g potassium, 350.75 μg/g vitamin A, 50.87 mg/100 g vitamin C, and 0.25% titratable acidity. There were significant reductions (p < .05) in the protein, lipid, fiber, ash, saponin, alkaloid, tannin, phenol, anthocyanin, calcium, magnesium, potassium, vitamin A, vitamin C, and titratable acidity of the boiled or boiled + sun‐dried A. montanus leaves; significant elevation of the moisture contents but significant reduction of the total carbohydrate contents of the boiled; and significant reduction of the moisture contents of the boiled + sun‐dried vegetable compared with the raw. There were significant increases (p < .05) in the total carbohydrate contents of the boiled + sun‐dried leaves; significant reductions (p < .05) in the moisture, saponin, alkaloid, and vitamins A and C contents of the sun‐dried vegetable; and no significant differences (p > .05) in the lipid, calcium, potassium, and ash, but significant increases (p < .05) in the protein, crude fiber, total carbohydrates, tannins, flavonoids, phenols, anthocyanin, magnesium, and titratable acidity of the sun‐dried vegetable when compared with the raw. Sun drying alone either retained or enhanced the release of some important bioactive compounds in A. montanus leaves. Furthermore, the reduced moisture content of the sun‐dried vegetable together with its increased titratable acidity will make the sun‐dried vegetable uninhabitable for microorganisms, thereby increasing its shelf life.

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“…Malanga (Colocasia esculenta L. Schott) is a tropical crop that is commercially valuable due to the high nutrient content in its tubers, and for its uses in both medicine and the development of biofuels (Eleazu, 2016;Kaur et al, 2013;Ogali et al, 2016;Talukder et al, 2015). The leaves and corms of C. esculenta have a high content of starch, protein, vitamins, polysaccharides, and various trace elements that are used in the food industry (Jiang et al, 2012;Kaur et al, 2013).…”

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confidence: 99%

In Vitro Techniques to the Conservation and Plant Regeneration of Malanga (Colocasia esculenta L. Schott)

Mancilla-Álvarez¹,

Ramírez-Mosqueda²,

Arano-Avalos³

et al. 2019

horts

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Malanga (Colocasia esculenta) is a plant genetic resource that requires biotechnological strategies for conservation and propagation. One time-, labor-, and space-saving option is in vitro conservation and regeneration. The objective of this study was to develop a protocol for in vitro regeneration and conservation of germplasm of C. esculenta var. criolla. For conservation through minimal growth, we assessed several concentrations of Murashige and Skoog (MS) medium (one-third, one-half, and three-quarter strength), the growth retardant ancymidol (0, 1, 2, and 3 mg·L−1), and the osmoregulator polyethylene glycol (PEG-8000 mw) at different concentrations (0, 10, 20, and 30 g·L−1). For in vitro conservation, the percent survival, shoot number and length, and number of leaves and roots per explant were evaluated after 24 weeks. For in vitro regeneration, different concentrations of thidiazuron (TDZ: 0, 0.5, 1, 1.5, and 2 mg·L−1) and 6-benzylaminopurine (BAP; 0, 1, 2, 3, and 4 mg·L−1) were evaluated. After 4 weeks of cultivation, the percent response, shoot number, and number of leaves per explant were recorded. During in vitro conservation, it was noted that the treatment including 2 mg·L−1 ancymidol resulted in a retarded development, without affecting the survival of the C. esculenta germplasm. With regard to shoot regeneration, 7.60 shoots per explant were obtained using 2 mg·L−1 TDZ. Finally, 98% survival was achieved during the acclimatization process. This study will contribute to the establishment of genetic improvement programs through in vitro conservation and propagation of this valuable plant genetic resource.

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Characterization of the natural products in cocoyam (Colocasia esculenta) using GC–MS

Cited by 41 publications

References 28 publications

Management of Benign Prostatic Hyperplasia: Could Dietary Polyphenols Be an Alternative to Existing Therapies?

Management of Benign Prostatic Hyperplasia: Could Dietary Polyphenols Be an Alternative to Existing Therapies?

Effect of processing on the biochemical contents of Acanthus montanus (Nees) T. Anderson (Acanthaceae) leaves

In Vitro Techniques to the Conservation and Plant Regeneration of Malanga (Colocasia esculenta L. Schott)

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